Protein Domain : IPR004389

Type:  Family Name:  Ribosomal protein L18, bacterial-type
Description:  Ribosomes are the particles that catalyse mRNA-directed protein synthesis in all organisms. The codons of the mRNA are exposed on the ribosome to allow tRNA binding. This leads to the incorporation of amino acids into the growing polypeptide chain in accordance with the genetic information. Incoming amino acid monomers enter the ribosomal A site in the form of aminoacyl-tRNAs complexed with elongation factor Tu (EF-Tu) and GTP. The growing polypeptide chain, situated in the P site as peptidyl-tRNA, is then transferred to aminoacyl-tRNA and the new peptidyl-tRNA, extended by one residue, is translocated to the P site with the aid the elongation factor G (EF-G) and GTP as the deacylated tRNA is released from the ribosome through one or more exit sites [, ]. About 2/3 of the mass of the ribosome consists of RNA and 1/3 of protein. The proteins are named in accordance with the subunit of the ribosome which they belong to - the small (S1 to S31) and the large (L1 to L44). Usually they decorate the rRNA cores of the subunits. Many ribosomal proteins, particularly those of the large subunit, are composed of a globular, surfaced-exposed domain with long finger-like projections that extend into the rRNA core to stabilise its structure. Most of the proteins interact with multiple RNA elements, often from different domains. In the large subunit, about 1/3 of the 23S rRNA nucleotides are at least in van der Waal's contact with protein, and L22 interacts with all six domains of the 23S rRNA. Proteins S4 and S7, which initiate assembly of the 16S rRNA, are located at junctions of five and four RNA helices, respectively. In this way proteins serve to organise and stabilise the rRNA tertiary structure. While the crucial activities of decoding and peptide transfer are RNA based, proteins play an active role in functions that may have evolved to streamline the process of protein synthesis. In addition to their function in the ribosome, many ribosomal proteins have some function 'outside' the ribosome [, ].This entry represents the ribosomal protein L18 from bacteria and chloroplasts. The archaebacterial type is not included in this family. Short Name:  Ribosomal_L18_bac-type

0 Child Features

0 Contains

2 Cross Referencess

Identifier
TIGR00060
MF_01337_B

0 Found In

4 GO Annotations

GO Term Gene Name
GO:0003735 IPR004389
GO:0006412 IPR004389
GO:0005622 IPR004389
GO:0005840 IPR004389

4 Ontology Annotations

GO Term Gene Name
GO:0003735 IPR004389
GO:0006412 IPR004389
GO:0005622 IPR004389
GO:0005840 IPR004389

1 Parent Features

DB identifier Type Name
IPR005484 Family Ribosomal protein L18/L5

336 Proteins

DB identifier UniProt Accession Secondary Identifier Organism Name Length
143891 D8R650 PAC:15418711 Selaginella moellendorffii 112  
30190.m010785 B9RCM8 PAC:16823153 Ricinus communis 164  
Cucsa.252040.1 A0A0A0L9A4 PAC:16971891 Cucumis sativus 170  
orange1.1g030804m A0A067DV47 PAC:18122212 Citrus sinensis 171  
AT1G48350.1 Q9SX68 PAC:19654218 Arabidopsis thaliana 170  
Thhalv10011822m V4KHN9 PAC:20184634 Eutrema salsugineum 173  
Ciclev10022561m V4TTY6 PAC:20807136 Citrus clementina 171  
Lus10038770 PAC:23150567 Linum usitatissimum 163  
Lus10039092 PAC:23150490 Linum usitatissimum 163  
Potri.010G005000.3 A0A2K1YLW7 PAC:26981497 Populus trichocarpa 165  
Potri.010G005000.5 PAC:26981500 Populus trichocarpa 122  
Potri.010G005000.1 PAC:26981496 Populus trichocarpa 173  
Potri.010G005000.2 A0A2K1YLW7 PAC:26981498 Populus trichocarpa 165  
Potri.010G008200.1 A9PGN8 PAC:26982201 Populus trichocarpa 165  
Gorai.004G096600.1 A0A0D2QUV2 PAC:26772254 Gossypium raimondii 256  
Gorai.004G096600.2 A0A0D2P9C4 PAC:26772256 Gossypium raimondii 176  
22577 I0Z3S8 PAC:27390231 Coccomyxa subellipsoidea C-169 163  
121689 C1MZD0 PAC:27344461 Micromonas pusilla CCMP1545 160  
59217 C1E818 PAC:27402464 Micromonas sp RCC299 157  
16290 A4S0S2 PAC:27414245 Ostreococcus lucimarinus 123  
Thecc1EG038745t1 A0A061GRD3 PAC:27429053 Theobroma cacao 176  
Araha.2117s0004.1.p PAC:28842873 Arabidopsis halleri 170  
Araha.11756s0192.1.p PAC:28856478 Arabidopsis halleri 106  
Cagra.1131s0026.1.p PAC:28909682 Capsella grandiflora 171  
Glyma.09G077600.1.p I1L1X6 PAC:30486824 Glycine max 160  
Glyma.15G185000.1.p I1MHM0 PAC:30495811 Glycine max 162  
Brara.H00360.1.p A0A397Y7K4 PAC:30647101 Brassica rapa FPsc 171  
Bostr.25219s0564.1.p PAC:30671861 Boechera stricta 170  
Cre01.g052100.t1.2 A8HNJ8 PAC:30788991 Chlamydomonas reinhardtii 145  
Medtr2g044920.1 A2Q3Y9 PAC:31062750 Medicago truncatula 166  

3 Publications

First Author Title Year Journal Volume Pages PubMed ID
            11297922
            11290319
            11114498